China Chemical reagent—N,N GB Standards Search Result |
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GB/T 33090-2016 Chemical reagent—N-(1-naphthyl)ethylenediamine dihydrochloride 化学试剂 N-(1-萘基)乙二胺盐酸盐 - 中英文版 |
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GB/T 33089-2016 Chemical reagent—N,N-dimethyl-p-phenylenediamine dihydrochloride 化学试剂 N,N-二甲基对苯二胺盐酸盐 - 中英文版 |
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